What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





dbx Encoded Discs


Recordings of exceptional clarity and dynamic range
for your increased listening pleasure.

The technology behind dbx encoded discs.





DIAGRAM DEPICTING THE COMBINATION OF SIGNAL COMPRESSION
DURING ENCODING AND EXPANSION DURING DECODING THAT RESULTS
IN SURFACE NOISE REDUCTION AND DYNAMIC RANGE RETENTION
ON dbx ENCODED DISCS.

'' dbx '' is a trademark of dbx Inc.

Carver SD/A 410


Features
Linear Single Bit Remote Control Compact Disc Player.
Single bit D/A conversion for accurate retrieval of musical detail.
16-track programming from front panel or random access remote keypad.
3-way repeat. Random "shuffle" play.
Search, skip, scan functions.
Coaxial direct digital output.
Calendar-type display.

Headphone jack.

Specifications
Decoding System:  Single bit
Output Filtration:  Analog / Digital
Frequency Response:  5 Hz - 20 kHz ±0,5 dB
S/N IHF A-weighted:  100
Total Harmonic Distortion:  0,004%
Disc capacity:  1
Programmable selections:  16
Dimensions (W x H x D):  483 x 98 x 295 mm

Weight:  3,2 kg

Lenco L 75/S (1976)

Lenco modello L75/S, (anche L55/S e L78/SE) oltre ad essere unico giradischi costruito in Italia, è anche unico giradischi con trasmissione a puleggia (Idler wheel) presenti sul mercato che puo essere definito " high-fidelity". Per la prima volta vienne l'introdotto nel 1976, caratterizzato da un braccio ad S e il nuovo design dello plinth. Tutti modeli prodotti in Italia discendono dal glorioso modello L70 che ere uno dei rarissimi giradischi con rumore e fluttuazioni di velocità molto bassi. L'eccezionalità di questo vecchio progetto è dimostrata dal fatto che, nonostante la struttura di base della macchina sia rimasta la stessa, le prestazioni dei modelli italiani sono di ottimo livello.
Il sistema di trasmissione a puleggia adottato dalla Lenco è molto particolare: spostando la puleggia parallelamente all'asse motore, è possibile regolare con continuità la velocità di rotazione del piatto tra 30 e 87 giri al minuto. Tre oppure due guide di riferimento permettono all'utente di posizionare senza esitazione il comando di regolazione della velocità in corrispondenza dei 33, 45 e 78 giri/minuto. La posizione delle guide può essere facilmente regolata ed allo scopo tra gli accessori viene fornito un piccolo disco stroboscopico.
Il piatto è eccezionalmente pesante e caratterizzato da un elevatissimo "momento di inerzia"; questa caratteristica fa si che in caso di una mancanza istantanea di corrente non si abbia una sensibile fluttuazione di velocità con il conseguente, tipo "miagolio". IN condizioni di normale funzionamento il Wow e Flutter è molto contenuto; 0,08% (valore non pesato), 0,005% ( valore pesato). Il braccio è piuttosto spartano e la regolazione del controllo antiskating a levetta con il contrappeso potrà creare difficoltà durante la regolazione.

Tuttosommato si tratta di un prodotto spartano ma caratterizzato da una incredibile robustezza ed affidabilità, con un coperchio di buona fattura e le cerniere a frizzione.

Velocità: 33 e 45 giri/minuto

Trazione: a pullegia

Wow & Flutter: 0,008% (non pesato), 0,005% (pesato)

Rumble & Hum: 40 dB

Raporto S/N: 60 dB

Piatto diametro: 315 mm

Piatto peso: 4,0 kg

Braccio "S": 280 mm

Dimensioni: 445 x 335 x 155 mm

Diapason Reference Series



Form and material fi nd their perfect balance when combined by man’s ingenious intuition, like in the creation of musical instruments. Or when designing instruments for music reproduction. Adamantes III N.W. and Karis N.W. loudspeakers are worldwide unique: the cabinet is fully made in solid wood, following procedures and techniques that trace back from the tradition and knowledge of master craftsmen qualifi ed in the manufacture of acoustic speakers from generation to generation.



The multi-faceted diamond shape of Adamantes III N.W. and Karis N.W. was designed to provide a circular pattern of sound-wave emission from the loudspeaker, thus giving a close approximation to the theoretical ideal of point-source radiation. While listening to, the speaker simply disappears, leaving just the music and our emotion on the stage. The same multi-faceted shape is also found inside the cabinet. This gives very effective control of internal refl ection, while wooden structures of different thickness help ensure that the cabinet is virtually resonancefree. Simplicity, quality without compromise and the most advanced technological research are the guidelines in speaker design and in the choice of drivers and crossover components.



The DDD (Diapason Direct Drive) technology applied to bass unit has been developed during more than ten years’ experience in loudspeakers design, in collaboration with the best Northern European driver manufacturers. Thanks to DDD direct connection from the amplifi er to the bass driver is allowed without the use of a low-pass fi lter in the crossover. The result of this system can be heard immediately when listening: grater transient speed in low frequency range with no loss of sensitivity or phase rotation. The match with the treated silk soft dome treble unit will astonish the listener for its naturalness, realism, three-dimensional experience, and for its capability to return the full spectrum of musical information available during a live musical event. The completeness of all information available to our ears makes the listening experience with Adamantes N.W. and Karis N.W. full of emotion and acoustically detailed. The drivers, especially manufactured according to Diapason specifi cation, are performance-matched within a tolerance of less than 1% for loudspeakers best acoustic performance.



The 3/P stand (63 cm) patented design removes cabinet vibrations by transferring them away from the speaker to the fl oor through three steel support bars. The wooden 3 columns shape works just as external structure since the speaker is isolated from the ground by stell bars only. The 2/B stand (75 cm) is made of a heavy metal and wood structure. The 2/B is provided with 4 cm spikes under the bottom base, making the stand ideal for use on carpet floor.



The high-pass crossover circuit is hard wired with Van den hul CS cable in oxygen-free silver coated copper, eliminating deleterious sonic effect of printed-circuit boards. A stringent fi nal quality check is carried out before packing to ensure that every loudspeaker is in perfect working order. The original Diapason stands are recommended together with Adamantes III N.W. and Karis N.W., since they contribute to the superb sound and aesthetical value.




Front-ported centre-speaker, grants excellent results in voice reproduction, is a functional element in a multi-channel system, matching with Adamantes III N.W. and Karis N.W.



Diapason Ástera

Ástera

The new reference stand-mount loudspeaker designed by
Alessandro Schiavi in collaboration with Roberto Pasetti,
Ástera represents the evolution of the Adamantes III, renowned
and appreciated throughout the world for its exquisite
musicality and beautiful cabinetry.

Ástera`s cabinet is a work of great artistry, hand-made by the
finest Italian craftsmen whose knowledge and skill in this
traditional craft are handed down from generation to generation.
The multi-faceted diamond shape of the Ástera was designed
to provide a circular pattern of sound-wave emission from the
loudspeaker, thus giving a close approximation to the
theoretical ideal of point-source radiation.
The benefits will be appreciated during listening as the
loudspeakers themselves `disappear` from the musical scene,
providing the listener with a sensation of great detail and
realism within a solid and convincing soundstage.
The same multi-faceted shape is also found inside the cabinet.
This gives very effective control of internal reflections, while
the use of wood of different thickness for the structure helps to
ensure that the cabinet is virtually resonance-free.
The choice of drive units, crossovers, terminals and all ancillary
components for the Ástera project was made without
compromise. Only the finest components from the very best
makers were selected.

The loudspeaker drive units and crossovers used in Diapason
loudspeakers are the result of advanced research, and each is
tested and matched to closer than 1% tolerance to ensure best
performance and stereo balance.
The tweeter is a 29mm soft-dome unit with Hexadym magnet
and double damping and ventilation.
The woofer has a Nextel-treated paper cone with an injection
moulded metal chassis. The crossovers are hard wired
throughout using Van den Hul oxygen-free copper and silver
cable, a superior method which avoids the problems that can
affect even the best printed circuit boards.
Ástera`s ability to portray the full sonic spectrum of a recorded
musical event is a revelation. Music is endowed with natural
transparency, great detail and a correct and convincing
feeling of space.
Excellent too is the dynamic impact and the ability of the
loudspeaker to reproduce the micro-contrasts of instruments
and voices within a complex musical scene without ever losing
focus or coherence.

The 4/U dedicated stand for Ástera uses a resonance-damping
system already tried and tested with success on previous
Adamantes models. It relies for its effect upon the use of
different materials and the particular way in which they are put
together. The massive structure and considerable weight of the
stand makes the combination of loudspeaker and support very
stable to the benefit of sonic performance, especially in the
low register. The 4/U stand consists of four metal support
columns and side panels in real hardwood which together give
a pleasing look and great rigidity.
The height of the 4/U stands is 72cm, and adjustable spikes are
provided . The stand can be placed on a hard floor surface, or
on a carpet or rug.

SPECIFICATIONS
Frequency response - 38/20.000 Hz
Bass driver Ø - 180 mm paper cone Nextel coated
Tweeter Ø - 29 mm silk soft dome
Efficiency - 88 dB/W/m
Freq. crossover - 1.600 Hz
Nominal impedance - 8 Ohm
Type - rear-ported reflex speaker
Finish - Canaletto walnut solid wood
Weight per speaker - 13 Kgs
Weight per stand - 26 Kgs
Dimensions speaker - (w x d x h) 260x442x380 mm
Dimensions speaker on stands - (w x d x h) 280x442x1146 mm

Klipsch - Corner Horn Loudspeaker Systems

The KLIPSCH LINE OF SOUND REPRODUCERS has been developed by Paul W. Klipsch to offer the ultimate in fidelity of sound reproduction. Employing the corner horn principle, they achieve the smoothest possible response over an exceptionally wide range with a negligible amount of distortion.
Each Klipsch system is tested and its components correctly balanced before leaving the factory.
The Klipschorn, a full-range, three-way reproducer utilizing a folded horn for the bass, and designed for corner placement so that the adjacent walls serve as extensions of the horn. Dimensions vary slightly according to furniture style, the model Fig. 2 was the "Style B.", which is 52 inches high, 31 1/4 inches across, and 28 1/4 inches deep (that is, from to the apex of the rear angle).

Designed for discriminating listeners, the KLIPSCHORN system is the acknowledged standard of all loudspeakers - the choice of famous conductors and recording artists.
3-WAY CORNER HORN DESIGN, comprissing three integrated exponential horns.
FREQUENCY RANGE, 25 cycles to over 22,000 with substantial efficiency from 30 cycles to over 16,000 cycles.
STYLES in mahogany, prima vera or birch. Utility models in unfinished fir.



Technics SU-9011 (1978)

Stereo preamplifier TECHNICS SU-9011

Input sensitivity/impedance;

Phono1 man-month: 2.5 mV / 47 kohm

Phono1 MC: 70 microvolts/ten ohms

Phono2 man-month: 2.5 mV / 47 kohm

Tuner, Aux: 150 mV / 47 kohm

Tape1, 2, Playback: 150 mV /47 kohm

Mic: 4 mV / 10 kohm

Phono maximum permissible input (1kHz, RMS):

Phono1 MM: 200 mV

Phono1 MC: 6 mV

Phono2 MM: 200 mV

Rated THD: 0.008%

S/N ratio (IHF-A):

Phono1 MM: 88 dB

Phono1 MC: 80 dB (at the time of a 250-microvolt input), -152dBV (input conversion)

Phono2 MM: 88 dB

Tuner, Aux: 100 dB

Mic: 73 dB

THD (20 Hz - 20,000 Hz):

Tuner, Aux: 0.005% (5 V output, Volume 0 dB), 0.008% (1 V output, Volume -30 dB)

Phono1, 2 man month: 0.008% (5 V output, Volume 0 dB), 0.01% (1V output, Volume-30dB)

Phono1 MC: 0.03% (5 V output, Volume 0 dB), 0.02% (1V output, Volume-30dB)

Frequency characteristic:

Phono1, 2: RIAA standard curve ±0.2 dB

Tuner and Aux: 20 Hz - 20,000 Hz +0 -0.2 dB, 2 Hz - 120 kHz +0 -3 dB

Tone control; Bass: ±8 dB (50Hz), Treble: ±8 dB (20kHz)

Subsonic Filter : 30 Hz - 12 dB / oct

A high filter: 7 kHz - 6 dB / oct

Loudness control (-30dB): +8 dB(100Hz)

An Output voltage/impedance;

Output: 1 V/600 ohm (rate), 5 V/600 ohm (maxima)

Mixing rec out: 1 V/600 ohm (rate), 5 V/600 ohm (maxima)

Tape1, 2 rec out: 150 mV

Power source: AC 100 V, 50/60 Hz

Power consumption: 13 W

Dimensions (W x H x D): 430 x 97 x 285 mm

Weight: 4.5kg

Technics SE-9021 (1978)

Stereo Power Amplifier TECHNICS SE-9021

General specifications

System: Transistor Power Amplifier

Speaker Outputs: 4 Speakers, Phones

Effective output: 60 Watts per channel at 8 ohms

Frequency Response: 0 - 150.000 Hz +0 -3 dB, 20 - 20,000 Hz +0 -1 dB

Harmonic Distortion: 0,01 % at rated output

Cross Modulation Distortion: 0,01%

S/N Ratio: 115 dB (IHF-A)

Imput sensitivity/ impedance: 1V/ 47 kohm

Dumping Factor: 100 (at 8 ohms)

Load impedance: 4 - 16 ohms

Physical specifications

Power source: AC100 V, 50/60Hz

Power consumption: 140 W

Dimensions (W x H x D): 430 x 97 x 331 mm

Weight : 9,7 Kg

Luxman D-103u (1988)

Il D-103 è il uno dei tre primi lettori CD che Luxman ha prodotto durante anni ottanta, e che ha offerto agli amanti della musica l'uso di stadi d'uscita a valvole, per dare il meglio della riproduzione musicale.

DAC quantization: 18 bits Twin D/A Burr Brown PCM1701P

Digital Filter Over Sampling Frequency: 352,8 kHz

Digital Output: EIA-J Digital Output

Phones output with volume control.

Vacuum Tubes Type: 6CG7

Frequency response: 5Hz-20 kHz /±1,0 dB

Dynamic Range: 92 db /30 kHz LPF, IHF-A

S/N ratio: 105 dB /30 kHz LPF, IHF-A

Channel Separation: 90 dB /1 kHz BPF

Wow and Flutter: Below measurable limits

THD: 20 Hz to 20 kHz, 1 kHz BPF: 0,05%

Output voltage/Impedance:

Fixed: 2,0 V/1,2 kohm

Variable: 0 to 2,0 V/1,2 kohm

Dimensions: 438 x 138 x 349 mm (W x H x D)

Weight: 8,5 Kg

Lowther PM6, PM4, PM2


For the finest sound in the world.
Basically , Lowther design has remained constant from the start since these units function on natural sonic principles which cannot be bettered. But through research, new materials and remarkably improved engineering techniques, Lowther drive units provide fantastically good performance whatever the sound source. These units are intended for use in internal folded-horn cabinets, the designs of which make electrical cross-over systems unnecessary.
Abridged technical specifications of Lowther Drive Units PM6, PM4 AND PM2 are given overleaf.


LOWTHER PM6
Overall Diameter: 228 mm
Overall Depth: 76 mm
PDC Mounting Centres: 208 mm
Baffle hole cut-out: 190 mm
Voice Coil Diameter: 38 mm
Voice Coil Impedance: 8 ohms
Air gap width: 1 mm
Magnet Type: Feroba 2
Flux Density: 1,7 Tesla (17000 gauss)
Flux energy gap Joules x 10³: 705 MJ
Diaphragm: Twin-paper
Frequency response: 20 - 20,000 Hz
Nominal free air resonance: 39 Hz
Sensitivity dB 2 x 10 ⁵ N/M²: 94 dB
Effective Moving Mass: 0,012 kg
Suspension compliance: 1,26 x 10³ M/N
Voice coiltravel: ±1mm
Shipping weight: 3 kg


LOWTHER PM2
Overall Diameter: 228 mm
Overall Depth: 92 mm
PDC Mounting Centres: 208 mm
Baffle hole cut-out: 190 mm
Voice Coil Diameter: 39 mm
Voice Coil Impedance: 8 ohms
Air gap width: 1 mm
Magnet Type: Feroba 2
Flux Density: 2,0 Tesla (20000 gauss)
Flux energy gap Joules x 10³: 976 MJ
Diaphragm: Twin-paper
Frequency response: 20 - 20,000 Hz
Nominal free air resonance: 39 Hz
Sensitivity dB 2 x 10 ⁵ N/M²: 95,5 dB
Effective Moving Mass: 0,012 kg
Suspension compliance: 1,26 x 10³ M/N
Voice coiltravel: ±1mm
Shipping weight: 4 kg


LOWTHER PM4
Overall Diameter: 228 mm
Overall Depth: 102 mm
PDC Mounting Centres: 208 mm
Baffle hole cut-out: 190 mm
Voice Coil Diameter: 30 mm
Voice Coil Impedance: 8 ohms
Air gap width: 1 mm
Magnet Type: Feroba 2
Flux Density: 2,4 Tesla (24000 gauss)
Flux energy gap Joules x 10³: 1400 MJ
Diaphragm: Twin-paper
Frequency response: 20 - 20,000 Hz
Nominal free air resonance: 39 Hz
Sensitivity dB 2 x 10 ⁵ N/M²: 97 dB
Effective Moving Mass: 0,012 kg
Suspension compliance: 1,26 x 10³ M/N
Voice coiltravel: ±1mm
Shipping weight: 6 kg

The above units have a power handling capacity up to 60 watts when suitably housed and may be used with amplifiers up to 100 watts outputper channel.




Tannoy Dual Concentric Loudspeaker System

This twin Loudspeaker system consist of a direct radiator low frequency unit mounted concentrically with a horn-loaded high frequency unit. The voice coils of both loudspeaker systems are fed through a specially designed cross-over network. The frequency response of both units is intrinsically level and the wide frequency response is not obtained by trick effects, such as cone break-up or diaphragm resonance. The desigh of the low frequency cone, which forms the final section of the high frequency horn, is such that even distribution of high frequencies is odtained over a wide angle and in order that the low frequency diaphragm shall move as a truepiston, the body thickness has been increased and the surround is specially treated to prevent the setting up of subsidiary resonances.

The high frequency unit is of particularly robust construction to ensure adequate power handling capacity and to enable it to take over from the L.F. unit at a sufficiently low frequency to avoid the latter's running into break-up troubles. The diaphragm is a light alloy pressing located to within very close limits on the backplate by means of a turned recess. An aluminium voice coil conductor is used in order to preserve the correct mass relationship and phase matching arrangement to ensure a level and extended high frequency response. The first section of the H.F. horn is formed from the center pole and is continued by the L.F. cone.

In the design of this loudspeaker, great care has been taken to ensure that the entire system is truly apperiodic which, together with its wide frequency range result in really outstanding reproduction.

This Loudspeaker unit isavailable in two forms - a 15" version, capable of handling up to 25 watts which is particularly useful for use with high quality Sound Reinforcement systems and 12" version capable of handling up to 15 watts, which finds itsmain application in high quality Phonograph and Radio reproducing systems. An example of a suitable Cabinet design for the latter application is shown above and takes the form of a corner mounting Bass Reflex Cabinet.

There is no doubt that where the input source is of sufficiently high quality, the Tannoy Dual Concentric Loudspeaker system is well in advance of any type of loudspeaker hithertto commercially available

TECHNICAL SPECIFICATION


12" Dual Concentric Loudspeaker

Frequency response: 25 - 20,000 Hz

H.F. Voice coil diameter: 2"

L.F. Voice coil diameter: 2"

H.F. Voice coil impedance: 14 ohms at 3000 Hz

L.F. Voice coil impedance: 18 ohms at 400 Hz

Flux density L.F. Gap: 10,000 gauss, B± L± 6-3 x 10¹⁴

Flux density H.F. Gap: 15,000 gauss, B± L± 1-1 x 10¹⁴

Power handling capacity: 15 watts

Impedence via crossover network: 18 ohms

Polar distribution: -3 dB at 10,000 Hz for 60⁰ inc. angle

Intermodulation produces: less than 2 %

Bass resonance: 35 Hz

Crossover frequency: 1,700 Hz

Overall Diameter of Frame: 12 "

Overall Depth: 7½ "

Fixing Holes p.c.d.: 11¾ "

Weight: 10 lbs (Crossover network on separate chassis)

Finish: Black Anodised and Cadmium plate


15" Dual Concentric Loudspeaker

Frequency response: 23 - 20,000 Hz

H.F. Voice coil diameter: 2"

L.F. Voice coil diameter: 2"

H.F. Voice coil impedance: 12 ohms at 2000 Hz

L.F. Voice coil impedance: 12 ohms at 400 Hz

Flux density L.F. Gap: 12,000 gauss, B± L± 7-7 x 10¹⁴

Flux density H.F. Gap: 18,000 gauss, B± L± 1-39 x 10¹⁴

Power handling capacity: 25 watts peak

Impedence via crossover network: 15 ohms

Polar distribution: -4 dB at 10,000 Hz for 60⁰ inc. angle

Intermodulation produces: less than 2 %

Bass resonance: 40 Hz

Crossover frequency: 1,000 Hz

Overall Diameter of Frame: 15¼ "

Overall Depth: 9 "

Fixing Holes p.c.d.: 14½ "

Weight: 30 lbs (including Crossover)

Finish: Cadmium plate and stove enamel

Cyrus One

Product Overview
Traditionally budget amplification was considered to have “budget sound”. The appearance of the Cyrus One in 1984 upset this established norm and revolutionised the audio industry. It demonstrated unequivocally, that an audiophile integrated amplifier was well within the grasp of the music lovers without the funds to indulge in exotica.
Designed by Cyrus to handle demands of modern loudspeakers and wide bandwidth recordings, the Cyrus One featured an exceptional power supply capable of responding to the source material requirements. This is the heart of the amplifier, the source of its stress free sound.

Further Information
To keep the signal as pure as possible, the Cyrus One features ‘minimalist’ circuitry devoid of the non-essential stages which interrupt the signal path. The signal integrity is preserved, even through this short path, by the use of only the finest components, including military grade power transistors and selected passive elements.
The cabinet and chassis are designed to do more than just elegantly cover the Cyrus interior: the case itself is made from a precision diecast non-ferrous metal alloy, while the chassis with integral heatsink made of diecast aluminium. In addition to structural integrity not demonstrated by any other amplifier at or near the Cyrus price range, these features improve the sonic fidelity by dispelling mechanical resonances, circuit microphony and airbourne radio frequency interference.
The Cyrus One has the capacity to accept five separate signal sources serving as the basis for a comprehensive hi-fi system. With its minimalist appeal and compact dimensions, the Cyrus One allows the listener to record from one source while listening to another and will accept the signal from high quality moving-coil cartridges as well as from the more common moving-magnet types. It is a completely functional package, providing the essentials without compromise.

Specifications

Continuous power:
25 W/CH (both driven into 8 Ohms)
40 W/CH (both driven into 4 Ohms)
Distortion:
0.005%, 1 kHz (into 8 Ohms)
0.007%, 1 kHz (into 4 Ohms)
Frequency response (line input): -3 dB, 1 Hz and 50 kHz
Frequency response (phono RIAA): 20 Hz – 20 kHz ±0.2 dB
Damping factor: 100
Slew rate: 10
Sensitivity (reference 1W output):
MM: 400uV, MC: 40uV, Line: 65mV
Input impedance: 14 kOhm (RCA), 47 kOhm (PH)
Maximum output voltage: 11 V (Tape out)
S/N Ratio (reference 1 W output):
MM: 84 dBA, MC: 67 dBA, Line: 86 dBA
Dimensions (H x W x D): 85 mm x 215 mm x 345 mm
Weight: 4 - 5 kg (depending on version)
Finish: Black or grey

Cyrus Two

The Cyrus Two set the standard for ultimate audiophile amplification. Designed to eliminate the extraneous aberrations caused by non-essential circuitry, the straight line Cyrus Two was “the” integrated amplifier for the persuit.
Amplification power is commonly defined in “watts” rating. In order to boast elevated specifications, amplifier manufacturers, in an increasing battle over specs, pushed their wattage ratings upwards at the expense of poor current delivery.

The Cyrus engineers defined high current swing capability as being the most important criteria in amplifier design. This is due to the reactive nature of loudspeakers requiring high currents rather than current-starved wattage. Being able to deliver currents demanded by the loudspeaker readily ensures true reproduction of the complex musical signal. At 50 Watts per channel the Cyrus Two can swing a substantial current of 60 Amps peak to peak.


The Cyrus Two incorporates a truly refined moving coil phono stage with excellent noise figures and minimal hysteresis, designed to work esoteric cartridges often costing many times as much as the amplifier. The direct CD input of the Cyrus Two eliminates unnecessary components that would otherwise interfere with the fidelity of compact disc reproduction.
But it does not stop there, for music lovers demanding even greater power, the Cyrus Two can be upgraded with the addition of the Cyrus PSX outboard power supply.
Specifications

Continuous power:
50 W/CH (both driven into 8 Ohms)
80 W/CH (both driven into 4 Ohms)
Continuous power (with PSX connected):
70 W/CH (both driven into 8 Ohms)
125 W/CH (both driven into 4 Ohms)
Distortion:
0.003%, 1 kHz (into 8 Ohms)
0.004%, 1 kHz (into 4 Ohms)
Frequency response (line input): -3 dB, 1 Hz and 50 kHz
Frequency response (phono RIAA): 20 Hz – 20 kHz ± 0.2 dB
Damping factor: 100
Slew rate: 10
Sensitivity (reference 1 W output):
MM: 0.3 mV, MC: 0.02 mV, Line: 50 mV
Input impedance: 14k (RCA), 47k (MM), 100k (MC)
Maximum output voltage: 11 V (Tape out)
S/N Ratio (reference 1 W output):
MM: 84 dBA, MC: 75 dBA, Line: 86 dBA
Dimensions (H x W x D): 85 mm x 215 mm x 345 mm
Weight: 4 - 5 kg (depending on version)
Finish: Black or grey